URBL, URBR

Type: Interneuron
In MoW: URB
Connectivity:
- In WormWiring: URBLh, URBRh, URBLm, URBRm
- In Nemanode: URB
In Wormbase: URB, URBL, URBR
Lineage: AB plaapaapa, AB praapaapa
Location: Head
Description: Cell bodies of URB neurons are situated lateral-anteriorly to the nerve ring. Their processes run anteriorly within the lateral process bundles.
Neurotransmitter/ Neuropeptide:
- Acetylcholine
(Loer and Rand, 2022; Duerr et al., 2008; Rand and Nonet, 1997-Appendix 2)
Innexin expression:
- INX-1b only in duaer
- INX-2
- INX-7
- INX-10a
- INX-14
- UNC-7
- UNC-9
(Bhattacharya et al., 2019; Altun et al., 2009)
Receptor expression:
Function:
Reporters:
- At CGC:
- Other:

 
 

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URBL (AB plaapaapa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of URBL; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).
 
 

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URBR (AB praapaapa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of URBR; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).


Last revision: July 28, 2025
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